Make sure that you have not disabled the speaker using the control panel within skedify.video.  If the speaker icon shows as , click it to enable your speaker.

Also, make sure that the volume is at an audible level.  On the control bar, slide the drop left or right to either decrease or increase the volume.

If that doesn’t solve the issue, make sure the correct audio output device is selected.  Refer to the “How to select a specific video or audio device in skedify video?” article to enable the correct audio output device.